aggro

Etymology
From a +, influenced by.

Noun

 * 1) Aggravation; bother.
 * 2)  Aggressive behaviour; loud, intimidating behaviour that convincingly threatens violence without necessarily actually becoming violent.
 * Move along, lads; we don't want any aggro.
 * 1)  A measure of how belligerent a player is – a high value may inspire either avoidance or preemptive hostile action from enemies.
 * 2)  Hostile attention from an enemy that should target players with better defenses.
 * You just pulled aggro off the tank and wiped the raid.
 * 1)  A measure of how belligerent a player is – a high value may inspire either avoidance or preemptive hostile action from enemies.
 * 2)  Hostile attention from an enemy that should target players with better defenses.
 * You just pulled aggro off the tank and wiped the raid.
 * 1)  Hostile attention from an enemy that should target players with better defenses.
 * You just pulled aggro off the tank and wiped the raid.
 * You just pulled aggro off the tank and wiped the raid.

Adjective

 * 1)  Angry.
 * 2)  Liable to attack without being attacked first (said of monsters).
 * 3)  Designed for  aggressive play that seeks to defeat the opponent in the early stages of the game.  Favoring such decks.
 * 4)  Hardcore, aggressive.
 * 1)  Hardcore, aggressive.

Verb

 * 1)  To become aggressive towards the player's character.
 * They'll aggro on you if you get too close.
 * 1)  To cause (a non-player character) to become aggressive towards the player's character.
 * I aggroed the enderman by looking in its eyes, and it killed me.